Saw blade



FIG. 1 is a front elevational view of the saw blade showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a perspective view thereof; and,

FIG. 4 is cross-sectional view thereof taken along line 4--4 of FIG. 1. 

The ornamental design for a saw blade, as shown and described. 